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Finding the Fourth Proportional to 117,804.72, 176,763.84 and 58,645.60

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Solution

The fourth proportional to 117,804.72, 176,763.84 and 58,645.60 is: 87,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,804.72 : 176,763.84 = 58,645.60 : x
  2. Step 2: Convert to fraction form
    117,804.72/176,763.84 = 58,645.60/x
  3. Step 3: Cross multiply
    117,804.72x = 176,763.84 × 58,645.60
  4. Step 4: Simplify right side
    117,804.72x = 10,366,421,455.10
  5. Step 5: Solve for x
    x = 10,366,421,455.10/117,804.72
  6. Step 6: Final answer
    x = 87,996.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.